Nā mea hana maʻamau ʻoiai ʻo ka wili ʻana (MWD).

ʻO kahi ʻōnaehana ana maʻamau ʻoiai ʻo Drilling (MWD) kahi ʻōnaehana downhole, ʻōnaehana hoʻoili ʻikepili a me kahi pūʻolo lako i luna. Ana ʻia ka ʻikepili kuhikuhi e ka ʻimi ʻana i lalo a hoʻouna ʻia e ka mud pulse telemetry a i ʻole nā ​​hawewe electromagnetic i luna. Me ka hapa nui o nā mea hana hiki ke hoʻololi i nā ʻano hana like ʻole e kahi kaʻina pulse.

ʻO ka ʻimi ʻana i lalo

ʻO ka ʻōnaeho iho o kahi ʻōnaehana ana ʻoiai ʻo Drilling (MWD) ma ke ʻano maʻamau, ʻekolu mau mea hoʻokiʻekiʻe mokuʻāina paʻa e ana i ka inclination a me ʻekolu mau mea hoʻokalakupua mokuʻāina paʻa e ana i ka azimuth. ʻO ka ʻimi hoʻohaʻahaʻa he ʻano like ia me nā mea paʻa paʻa hoʻokahi a me nā mea paʻi he nui a waiho ʻia i loko o ke kola non-magnetic.

Ka lawe ʻikepili

ʻEkolu mau ala nui o ka lawe ʻana i ka ʻikepili i ka ʻili:

1. Hoʻopili ʻo Mud pulse telemetry i ka ʻikepili ma ke ʻano binary a hoʻouna iā lākou i ka ʻili e nā pulupulu kaomi maikaʻi a maikaʻi ʻole paha i hana ʻia i loko o ka wai wili kahi i ʻike ʻia e nā transducers kaomi ma luna o ka paipu kū a hoʻololi ʻia e kahi kamepiula ʻili.

2. ʻO ka telemetry hawewe mau, he ʻano o ka pulupulu maikaʻi, hoʻohana i kahi mea hoʻololi e hana ana i ka hōʻailona alapine paʻa e hoʻouna ana i ka ʻike binary i hoʻopaʻa ʻia i nā hoʻololi ʻana i ka hawewe kaomi i luna ma o ke kolamu lepo. ʻO ka pōmaikaʻi nui o ka ʻōnaehana telemetry hawewe mau ma luna o ka ʻōnaehana maikaʻi a maikaʻi ʻole ʻo ia ke alapine pulse kiʻekiʻe e hōʻemi ana i ka manawa noiʻi pono.

3. Hoʻohana ka uila uila i nā hawewe electromagnetic alapine haʻahaʻa e hele ana i ka hoʻokumu ʻana. Loaʻa kēia mau mea me kahi antenna i kau ʻia ma ka lepo e pili ana i ke kahua rig. He palena palena ka hohonu o ka ʻōnaehana ma muli o ka resistivity o nā hoʻokumu. ʻO ka haʻahaʻa o ka resistivity, ʻoi aku ka pāpaʻu o ka pae hohonu pono. I kēia manawa, aia kēia ma waena o 1000 a 2000 mika. Kū'ē i nā ʻōnaehana telemetry nalu maikaʻi, maikaʻi ʻole a hoʻomau, hiki ke hoʻohana ʻia ka ʻōnaehana telemetry electromagnetic inā paʻa ka pūnāwai, no ka laʻana no ka wili ʻana ma lalo o ke kaulike.

Lako o luna

ʻO nā ʻāpana ili maʻamau o kahi ʻōnaehana ʻo ka ʻōnaewele ʻeleʻele ʻo Measurement While Drilling (MWD) me nā transducers puʻe no ka ʻike ʻana i ka hōʻailona, ​​​​nā mea hoʻokaʻawale hōʻailona uila, a me nā mea heluhelu a me nā kikohoʻe like ʻole.

ʻO ka hōʻoia maikaʻi

ʻO ka hōʻoia maikaʻi o ke ana ʻana ʻoiai ʻo Drilling (MWD) nā mea hana like me nā mea paʻa paʻa hoʻokahi a me nā mea paahana lehulehu. Ma waho aʻe o kēia, pono e hana ʻia kahi hoʻāʻo hana ma mua o ka holo ʻana i ka BHA i lalo.

Nā kaʻina hana maʻamau:

1. Carry out surface function test. E nānā i ka alignment o ka Measurement While Drilling (MWD) me ka piko sub, inā pili.

2. Lawe i ke kaʻina hana hoʻāʻo pāpaʻu.

3. Pono e ho'āʻo ʻia ka mea hana ʻoiai ʻo Drilling (MWD), i nā manawa a pau e hiki ai ke hana pēlā, kokoke i ka ʻili. ʻO kēia ka mea maʻamau 1 a 2 mau kū o ka drillpipe ma lalo o ka rotary. Penei ke kaʻina hana:

- hoʻopili iā kelly a i ʻole kaʻa luna;

-e lawe i ka noiʻi a kali no ka hoʻouna ʻana i ka noiʻi piha. ʻO nā pae hoʻohālike no kahi noiʻi kūpono:

- pono e emi iho ka manao ma lalo o 1°;

-ʻo ke kahua ʻumekaumaha i loko o 0.003 g o ka waiwai i manaʻo ʻia;

-e hoʻomaopopo ʻaʻole kūpono ka ʻikepili magnetic i lawe ʻia i loko o ka riser a i ʻole casing;

-inā ʻoluʻolu ka hoʻāʻo ʻana, a hoʻomau ʻia ka holo ʻana o nā pulu lepo lepo.

4. E hoʻokō i kahi noiʻi hōʻailona. Holo i loko o ka lua i loaʻa ka mea ʻike ʻia ʻo Measurement While Drilling (MWD) ma ke kahua kuhikuhi a e hana i ka loiloi benchmark penei:

5. He 15 m (50 ft) ka mamao ma lalo o ka kāma'a casing mua, akā ua lawa ka mamao mai nā pūnāwai 'ē a'e e pale aku ai i ka ho'opilikia 'ana i ke ana 'oiai e ho'o ana (MWD).

6. E hana i kahi noiʻi nānā. E lawe ʻia kēia ma lalo ma mua o ka wili ʻana a ʻoi aku ka maikaʻi ma kahi kokoke i ke ana hope ʻana i ka ana ʻana ʻoiai ʻo Drilling (MWD) i lawe ʻia ma ka holo mua e like me ka hiki. Pono paha e hoʻohana i ka ana ʻana ʻo Measurement While Drilling (MWD) hope loa mai ka holo mua. E hōʻoia kēia anamanaʻo i ka pololei o ka ʻikepili noiʻi o ka holo mua. Ke ʻike ʻia nā ʻokoʻa o ka ʻoi aku ma mua o ʻelua degere ma ka azimuth a me ka hapalua degere i ka makemake i kēia mau loiloi loiloi, pono e kūkākūkā ʻia ke keʻena e aʻo i ka hana e pono ai.

7. E holo i loko o ka lua a e hoʻomaʻamaʻa i mua e lawe ana i nā anamanaʻo e like me ka mea e pono ai a i ʻole ke kuhikuhi ʻana i ka toolface.

8. Pono e hōʻoia ʻia kekahi anamanaʻo kānalua ma o ka lawe ʻana i kahi ana ʻana ʻē aʻe i ka ana ʻana ʻoiai ʻo Drilling (MWD).

Ma keʻano he mea hanaʻoihana o nā mea hana logging, ua nui nā makahiki o kā mākou mauʻenehana loea i ka hoʻopauʻana a me ka hoʻopaʻa inoaʻana, hiki ke hoʻonohonoho ponoʻia nā mea hana logging a pau ma ke kūʻaiʻana e like me nā koi o ka mea kūʻai,ʻoiaʻiʻo, hiki iā mākou ke hāʻawi iāʻoe i nā lawelawe ma ka pūnaewele e kōkua. hana ʻoe i nā ana ma ka pūnaewele. Inā makemake ʻoe i ka hoʻopau ʻana a me ka hoʻopaʻa ʻana i nā mea hana, e ʻoluʻolu e hoʻokaʻaʻike i ka hui Vigor, e hāʻawi mākou iā ʻoe i ke kākoʻo ʻenehana loea a me ke kākoʻo huahana i ka manawa mua.